[ 18.352652][ T3636] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.359477][ T3636] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.400211][ T292] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.405001][ T3548] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.065327][ T1528] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.425358][ T1528] usb 1-1: New USB device found, idVendor=047d, idProduct=5002, bcdDevice=b9.5b [ 45.427348][ T1528] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.431874][ T1528] usb 1-1: config 0 descriptor?? [ 45.467705][ T1528] gspca_main: se401-2.14.0 probing 047d:5002 [ 45.835323][ T1528] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 46.025389][ T1528] usb 1-1: device descriptor read/64, error -32 [ 46.295376][ T1528] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 46.485299][ T1528] usb 1-1: device descriptor read/64, error -32 [ 46.755318][ T1528] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 46.835751][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 46.845499][ T1528] usb 1-1: Using ep0 maxpacket: 16 [ 47.285471][ T1528] usb 1-1: device descriptor read/all, error 1 [ 47.435309][ T1528] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 47.545420][ T1528] usb 1-1: device descriptor read/8, error -71 [ 47.666219][ T1528] gspca_se401: read req failed req 0x06 error -19 [ 47.669908][ T3963] ================================================================== [ 47.671539][ T3963] BUG: KASAN: slab-out-of-bounds in read_descriptors+0x23c/0x290 [ 47.673174][ T3963] Read of size 2 at addr ffff0000ca3ab2aa by task udevd/3963 [ 47.674758][ T3963] [ 47.675242][ T3963] CPU: 1 PID: 3963 Comm: udevd Not tainted 5.15.117-syzkaller #0 [ 47.676854][ T3963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 47.678976][ T3963] Call trace: [ 47.679773][ T3963] dump_backtrace+0x0/0x530 [ 47.680712][ T3963] show_stack+0x2c/0x3c [ 47.681580][ T3963] dump_stack_lvl+0x108/0x170 [ 47.682586][ T3963] print_address_description+0x7c/0x3f0 [ 47.683657][ T3963] kasan_report+0x174/0x1e4 [ 47.684627][ T3963] __asan_report_load2_noabort+0x44/0x50 [ 47.685820][ T3963] read_descriptors+0x23c/0x290 [ 47.686850][ T3963] sysfs_kf_bin_read+0x19c/0x1d4 [ 47.687871][ T3963] kernfs_fop_read_iter+0x32c/0x50c [ 47.688947][ T3963] vfs_read+0x86c/0xb10 [ 47.689804][ T3963] ksys_read+0x15c/0x26c [ 47.690830][ T3963] __arm64_sys_read+0x7c/0x90 [ 47.691804][ T3963] invoke_syscall+0x98/0x2b8 [ 47.692755][ T3963] el0_svc_common+0x138/0x258 [ 47.693740][ T3963] do_el0_svc+0x58/0x14c [ 47.694668][ T3963] el0_svc+0x7c/0x1f0 [ 47.695515][ T3963] el0t_64_sync_handler+0x84/0xe4 [ 47.696537][ T3963] el0t_64_sync+0x1a0/0x1a4 [ 47.697495][ T3963] [ 47.697994][ T3963] Allocated by task 1528: [ 47.698922][ T3963] ____kasan_kmalloc+0xbc/0xfc [ 47.699992][ T3963] __kasan_kmalloc+0x10/0x1c [ 47.700991][ T3963] __kmalloc+0x29c/0x4c8 [ 47.701853][ T3963] usb_get_configuration+0xd8/0x4048 [ 47.702981][ T3963] usb_new_device+0x12c/0x1448 [ 47.704000][ T3963] hub_event+0x22e4/0x48c4 [ 47.705002][ T3963] process_one_work+0x790/0x11b8 [ 47.706040][ T3963] worker_thread+0x910/0x1034 [ 47.707085][ T3963] kthread+0x37c/0x45c [ 47.707937][ T3963] ret_from_fork+0x10/0x20 [ 47.708855][ T3963] [ 47.709339][ T3963] The buggy address belongs to the object at ffff0000ca3ab000 [ 47.709339][ T3963] which belongs to the cache kmalloc-1k of size 1024 [ 47.712291][ T3963] The buggy address is located 682 bytes inside of [ 47.712291][ T3963] 1024-byte region [ffff0000ca3ab000, ffff0000ca3ab400) [ 47.715210][ T3963] The buggy address belongs to the page: [ 47.716409][ T3963] page:00000000e42d6beb refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a3a8 [ 47.718654][ T3963] head:00000000e42d6beb order:3 compound_mapcount:0 compound_pincount:0 [ 47.720466][ T3963] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 47.722138][ T3963] raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c0002780 [ 47.723907][ T3963] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 47.725587][ T3963] page dumped because: kasan: bad access detected [ 47.726907][ T3963] [ 47.727379][ T3963] Memory state around the buggy address: [ 47.728611][ T3963] ffff0000ca3ab180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 47.730344][ T3963] ffff0000ca3ab200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 47.732154][ T3963] >ffff0000ca3ab280: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc [ 47.733828][ T3963] ^ [ 47.734979][ T3963] ffff0000ca3ab300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 47.736748][ T3963] ffff0000ca3ab380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 47.738538][ T3963] ================================================================== [ 47.740173][ T3963] Disabling lock debugging due to kernel taint [ 47.743262][ T1528] usb 1-1: USB disconnect, device number 2 [ 47.746875][ T3963] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 47.748964][ T3963] Mem abort info: [ 47.751378][ T3963] ESR = 0x0000000096000004 [ 47.752330][ T3963] EC = 0x25: DABT (current EL), IL = 32 bits [ 47.753632][ T3963] SET = 0, FnV = 0 [ 47.754503][ T3963] EA = 0, S1PTW = 0 [ 47.755419][ T3963] FSC = 0x04: level 0 translation fault [ 47.756573][ T3963] Data abort info: [ 47.757291][ T3963] ISV = 0, ISS = 0x00000004 [ 47.758207][ T3963] CM = 0, WnR = 0 [ 47.759025][ T3963] user pgtable: 4k pages, 48-bit VAs, pgdp=000000010f9c4000 [ 47.760535][ T3963] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 47.762155][ T3963] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 47.763478][ T3963] Modules linked in: [ 47.764284][ T3963] CPU: 1 PID: 3963 Comm: udevd Tainted: G B 5.15.117-syzkaller #0 [ 47.766278][ T3963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 47.768494][ T3963] pstate: a0400005 (NzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 47.770193][ T3963] pc : __memcpy+0x110/0x260 [ 47.771112][ T3963] lr : memcpy+0xc8/0xe8 [ 47.771913][ T3963] sp : ffff800018e27900 [ 47.772797][ T3963] x29: ffff800018e27900 x28: dfff800000000000 x27: 0000000000000fdc [ 47.774504][ T3963] x26: 0000000000000020 x25: ffff0000d8e59610 x24: 000000000000525a [ 47.776086][ T3963] x23: ffff800016ee1000 x22: ffff80000d7216a4 x21: ffff0000ca1ce024 [ 47.777690][ T3963] x20: 0000000000000000 x19: 0000000000000fdc x18: 1fffe0003690338e [ 47.779369][ T3963] x17: 1fffe0003690338e x16: ffff800011952524 x15: ffff80001498f100 [ 47.781284][ T3963] x14: ffff0000ca1ce024 x13: 0000000000000000 x12: 0000000000000000 [ 47.782982][ T3963] x11: 0000000000000000 x10: ffff600019439e00 x9 : 0000000000000000 [ 47.784665][ T3963] x8 : 0000000000000001 x7 : 0000000000000000 x6 : ffff800008268c6c [ 47.786484][ T3963] x5 : ffff0000ca1cf000 x4 : 0000000000000fdc x3 : ffff80000d7216a4 [ 47.788126][ T3963] x2 : 0000000000000fdc x1 : 0000000000000000 x0 : ffff0000ca1ce024 [ 47.789783][ T3963] Call trace: [ 47.790461][ T3963] __memcpy+0x110/0x260 [ 47.791360][ T3963] read_descriptors+0x1bc/0x290 [ 47.792495][ T3963] sysfs_kf_bin_read+0x19c/0x1d4 [ 47.793623][ T3963] kernfs_fop_read_iter+0x32c/0x50c [ 47.794867][ T3963] vfs_read+0x86c/0xb10 [ 47.795782][ T3963] ksys_read+0x15c/0x26c [ 47.796721][ T3963] __arm64_sys_read+0x7c/0x90 [ 47.797750][ T3963] invoke_syscall+0x98/0x2b8 [ 47.798674][ T3963] el0_svc_common+0x138/0x258 [ 47.799641][ T3963] do_el0_svc+0x58/0x14c [ 47.800572][ T3963] el0_svc+0x7c/0x1f0 [ 47.801420][ T3963] el0t_64_sync_handler+0x84/0xe4 [ 47.802559][ T3963] el0t_64_sync+0x1a0/0x1a4 [ 47.803507][ T3963] Code: cb01000e b4fffc2e eb0201df 540004a3 (a940342c) [ 47.805055][ T3963] ---[ end trace b85945dc2a7bcdb7 ]--- [ 48.132024][ T3963] Kernel panic - not syncing: Oops: Fatal exception [ 48.133350][ T3963] SMP: stopping secondary CPUs [ 48.134473][ T3963] Kernel Offset: disabled [ 48.135424][ T3963] CPU features: 0x000081c1,21302e40 [ 48.136432][ T3963] Memory Limit: none [ 48.448617][ T3963] Rebooting in 86400 seconds..